The Mighty Mule FM231 wireless driveway alarm delivers reliable, long-range vehicle detection so you can secure your property without a gate or complex setup. You’ll appreciate its DIY-friendly …

Sep 25, 2008 · Whether you're securing a home, business, or rural property, the Mighty Mule FM231 provides an efficient, cost-effective solution for vehicle detection and driveway security.

The Mighty Mule Wireless Driveway Alarm alerts you when a guest enters your driveway. This safety alarm uses reliable electromagnetic vehicle detection to sense when a vehicle is passing through …

The Mighty Mule Wireless Driveway Alarm alerts you when a guest enters your driveway. The alarm uses reliable electromagnetic vehicle detection to sense when a vehicle is passing through your …

Nov 20, 2025 · The Mighty Mule Wireless Driveway Alarm alerts you when a guest enters your driveway. The alarm uses reliable electromagnetic vehicle detection to sense when a vehicle is passing …

Jul 30, 2025 · Most issues with the Mighty Mule driveway alarm are easy to fix once you know what to look for. In this guide, we’ll walk you through simple troubleshooting steps to get your alarm back on …

Upgrade your home security with the Mighty Mule Wireless Driveway Alarm FM231. Easy to install!

Keep track of vehicles entering or exiting your property with the easy-to-install Mighty Mule Wireless Driveway Alarm Kit (model FM231). When a vehicle passes the sensor, the receiver emits an audible …

Choose a location for the TRANSMITTER module that is far enough from the driveway edge that vehicles are unlikely to hit it. Run the SENSOR cable through the PVC mounting post and plug it into …

View and Download Mighty Mule FM231 installation manual online. The electromagnetic sensor detects vehicles in motion and sends a signal to the indoor receiver. FM231 driveway alarms pdf manual …